Dateline with Lester Holt
THURS. 10P/9C, FRI. 9P/8C AND SUN. 7P/6C

PREVIEW: Over the Edge

In an two-hour Dateline, Andrea Canning tells the story of a woman who falls to her death while hiking with her husband in Rocky Mountain National Park. Rangers question if her death was an accident or a heinous act of violence. Will a buried secret soon be revealed? Airs Friday, November 25 at 9/8c.